gcleaner | 62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f

General

Target
62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe
Size 405KB
Sample240603-yeqd3aha73
SHA256 62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f
MD5 e3e30f05f688d401ecf966214e7a30df
SHA1 5877bba48cef3b621e8df6bd1488601fb2e1c692
SHA512 7346f9f7eff5e57f6cc114c2cd78baf8b1338f3bc0d40f9d3c111369cca597a957d8a93d8454482adb5b07f414e1bc2e47ed770e6123b3b96be4934d8c3cca6e
SSDEEP 6144:TJ6+wRoyBkBSymz5iGTm4x3GosbEndVUaCt2ukH1WTK:TA+wGyaBSymz5pm4xGooOVUaykg
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
5.42.64.56
185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
1708	2488	WerFault.exe	75
4768	2488	WerFault.exe	75
4232	2488	WerFault.exe	75
3508	2488	WerFault.exe	75
4828	2488	WerFault.exe	75
2832	2488	WerFault.exe	75
5056	2488	WerFault.exe	75
3588	2488	WerFault.exe	75
1312	2488	WerFault.exe	75
2136	2488	WerFault.exe	75

Kills process with taskkill 1 IoCs

evasion

pid	Process
1772	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1772	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 1472	2488	62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe	95
PID 2488 wrote to memory of 1472	2488	62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe	95
PID 2488 wrote to memory of 1472	2488	62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe	95
PID 1472 wrote to memory of 1772	1472	cmd.exe	99
PID 1472 wrote to memory of 1772	1472	cmd.exe	99
PID 1472 wrote to memory of 1772	1472	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe
"C:\Users\Admin\AppData\Local\Temp\62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 296
  2⤵
  - Program crash
  PID:1708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 800
  2⤵
  - Program crash
  PID:4768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 840
  2⤵
  - Program crash
  PID:4232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 856
  2⤵
  - Program crash
  PID:3508
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 896
  2⤵
  - Program crash
  PID:4828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 1000
  2⤵
  - Program crash
  PID:2832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 1104
  2⤵
  - Program crash
  PID:5056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 1332
  2⤵
  - Program crash
  PID:3588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 1672
  2⤵
  - Program crash
  PID:1312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1472
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "62d94b28831465e639c4912fa14f52ff3f46e5cb393ec6b3dc79bb06cffd8a7f.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 1624
  2⤵
  - Program crash
  PID:2136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2488 -ip 2488
1⤵
PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2488 -ip 2488
1⤵
PID:2500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2488 -ip 2488
1⤵
PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2488 -ip 2488
1⤵
PID:3896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2488 -ip 2488
1⤵
PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2488 -ip 2488
1⤵
PID:4436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2488 -ip 2488
1⤵
PID:4992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2488 -ip 2488
1⤵
PID:1396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2488 -ip 2488
1⤵
PID:4284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2488 -ip 2488
1⤵
PID:3780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VZQAW3IB\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/2488-2-0x00000000023A0000-0x00000000023DC000-memory.dmp

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memory/2488-1-0x0000000000900000-0x0000000000A00000-memory.dmp

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memory/2488-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2488-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/2488-15-0x0000000000400000-0x000000000069E000-memory.dmp

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memory/2488-21-0x0000000000900000-0x0000000000A00000-memory.dmp

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memory/2488-22-0x00000000023A0000-0x00000000023DC000-memory.dmp

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memory/2488-25-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2488-35-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2488-34-0x0000000000400000-0x000000000069E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads